The drug or other substance has no currently accepted medical use in treatment in the United States. C. There is a lack of accepted safety for use of the drug or other substance under medical supervision."

However, when new facts arise, the wise man changes his mind. Tobacco actually has a medical use now. It's being used to develop antibodies to fight Ebola. But don't light up in celebration just yet; a pack a day won't keep Ebola away. It's a little more complex than that. more at url